110 results about "MYB" patented technology

This invention relates to compounds, compositions, and methods useful for modulating Myc and/or Myb gene expression using short interfering nucleic acid (siNA) molecules. This invention also relates to compounds, compositions, and methods useful for modulating the expression and activity of other genes involved in pathways of Myc and/or Myb gene expression and/or activity by RNA interference (RNAi) using small nucleic acid molecules. In particular, the instant invention features small nucleic acid molecules, such as short interfering nucleic acid (siNA), short interfering RNA (siRNA), double-stranded RNA (dsRNA), micro-RNA (miRNA), and short hairpin RNA (shRNA) molecules and methods used to modulate the expression of Myc and/or Myb (e.g., c-Myc, N-Myc, L-Myc, c-Myb, a-Myb, b-Myb, and v-Myb) genes. The small nucleic acid molecules are useful in the treatment of cancer and other diseases and disorders.

The invention discloses a plant flavonoid synthesis regulation gene and its application. CDNA obtained through the inverse transcription of the total RNA of Epimedium brevicornum Maxim blades is treated as a template and undergoes PCR to obtain a 233bp fragment, the 233bp fragment has a very high homology with flavonoid related R2R3-MYB gene, a full-length cDNA sequence is obtained through an RACE technology and is named EsMYBA1 gene, and the sequence of the EsMYBA1 gene is represented by SEQIDNO.1. The EsMYBA1 gene codes an R2R3-MYB transcription factor which has an about 50% homology with other MYB regulation genes for controlling the flavonoid synthesis approaches, and the improvement of the expression level of the EsMYBA1 gene through a genetic engineering technology promotes the synthesis and the accumulation of anthocyanidin.

The invention provides an MYB transcription factor CmMYB6 implicated in chrysanthemum petal anthocyanin biosynthesis regulation. The coding region sequence of the MYB transcription factor CmMYB6 contains 765 nucleotides. A CmMYB6 amino acid sequence contains a conserved R2R3 MYB domain, a [D/E]Lx2[R/K]x3Lx6Lx3R motif and an ANDV motif exist in the R3 domain, the [D/E]Lx2[R/K]x3Lx6Lx3R motif can interact with bHLH, and the ANDV motif is the characteristic motif of the MYB transcription factor implicated in anthocyanin biosynthesis regulation. The gene expression of CmMYB6 rises in the petal growth process and is significantly and positively correlated with anthocyanin synthesis the CmMYB6 can induce the activity of synthesis of a key gene CmDFR promoter from anthocyanin, and the CmMYB6 has substantially enhanced induction usefulness and can strongly induce accumulation of tobacco leaf anthocyanin during cooperative expression of the CmMYB6 and MrbHLH1. The MYB transcription factor can be used in transcription regulation of plant anthocyanin biosynthesis and plant color modification.

The invention relates to a cloning and function expression method of an adversity stress AhMYBL6 gene in peanut. The adversity stress AhMYBL6 gene is synthesized by RT-PCR (reverse transcription-polymerase chain reaction) cloning by the steps of preparation and treatment of materials, extraction of RNA (ribonucleic acid) and synthesis of cDNA (complementary deoxyribonucleic acid). The open reading frame of the gene is 861bp, and 287 amino acids are coded totally. The homology of the amino acid sequence of the gene with the MYb family proteins GmMYB4, GmMYB29 and GmMYB29A2 of the soybean is higher than 60%. The fluorescent quantitative PCR verifies the expression patterns of the AhMYBL6 under low temperature, salt stress and drought stress; the result indicates that the expression levels of the AhMYBL6 are obviously enhanced after various stress treatment for 1 hour, and kept at high levels all the time thereafter; and the expression level of the AhMYBL6 in the leaf subjected to low-temperature treatment is maximally enhanced by 20 times. After the gene is transferred into peanut by transgenic means, compared with the control, the transgenic plant has obvious characteristics of cold tolerance, salt tolerance and drought tolerance. The AhMYBL6 gene can obviously enhance the stress tolerance of the peanut.

The invention discloses a Brassica napus, parent species Chinese cabbage, cabbage MYBL2 (v-myb avian myeloblastosis viral oncogene homolog-like 2) gene family. The Chinese cabbage MYBL2 gene family comprises a BrMYBL2-1 gene and a BrMYBL2-2 gene. The cabbage MYBL2 gene family comprises a BoMYBL2-1 gene and a BoMYBL2-2 gene. The Brassica napus MYBL2 gene family comprises a BnMYBL2-1 gene, a BnMYBL2-2 gene, a BnMYBL2-3 gene, a BnMYBL2-4 gene. Eight MYBL2 genes have higher homology. The invention also discloses the application of the above gene families in molecular breeding with characters, such as plant seed coat color, seed coat thickness and the like. After a just overexpression plant carrier is built and double 10 number in the black Brassica napus variety, the Brassica napus is compared with the contrast of the explant of a non-transgenosis, transgenosis plants normally grow and develop, pigments such as Proanthocyanidins in the seed coat are reduced, and meanwhile the seed coat becomes thin to form the transgenosis yellow seed character.

The invention provides a soybean specific response low-phosphorous transcription factor GmPHRLP and an application. A soybean variety 'BX10' serves as a material, a transcription factor is discoveredby RNA-seq, the expression level of the transcription factor is remarkably improved under the condition of phosphorus deficiency, a specific primer of a gene is designed by a sequencing joint sequence, cloned and subjected to homologous analysis, a result discovers that the transcription factor belongs to an MYB-CC family, the transcription factor and a phosphorous signal center regulating factorof model plant Arabidopsis and rice have high protein homology, P1BS (PHR1 Binding Sites) can be combined, expression of the transcription level of the transcription factor is affected by low-phosphorus specific induction, expression of a phosphate transporter protein can be induced, and absorption and transport of phosphorus are increased under low phosphorus. The gene is over-expressed in soybean hair roots, so that phosphorus absorption of soybeans can be improved, and biomass of the soybeans is remarkably improved under low-phosphorus culture conditions.

The invention relates to a reference gene for fluorescence quantification of different tissues of Chinese yam and primers and application thereof, and belongs to the technical field of molecular biology of Chinese yam. The nucleotide sequence of the reference gene CKI-2 is as shown in SEQ ID NO. 1. The nucleotide sequence of a PCR amplification primer of the reference gene CKI-2 is as follows: anupstream primer is shown as SEQ ID NO.2; and the downstream primer is as shown in SEQ ID NO. 3. Protein kinase I, myb, F-box, actin gene, EF1, bHLH13, eIF1, grid heavy chain protein and other genes are selected as candidate genes of different tissues. The stability of candidate genes is evaluated through qRT-PCR in combination with RefFind, reference genes stably expressed in different tissues ofthe Chinese yams are selected out through screening, and a reference basis is provided for later development of research work such as gene function verification of growth and development and metabolicmechanisms of the Chinese yams.

The present invention provides a method for predicting the treatment response of a human gastroesophageal cancer patient, the method comprising: a) measuring the gene expression of at least 3 of the following genes: CDH1, CDK6, COX2, ELOVL5, GATA4, EGFR, TBCEL, FGF7, CDH17, FNBP1, PIP5K1B, TWIST, CD44, MET, CEACAM1, TOX3, GLIPR2, GSTP1, RON, TMEM136, MYB, BRCA2, FGF1, POU5F1, EPR, DPYD, ABL2 and SH3RF1 in a sample obtained from the gastroesophageal tumour of the patient to obtain a sample gene expression profile of at least said genes; and b) making a prediction of the treatment response and/or prognosis of the patient based on the sample gene expression profile. Also provided are related computer-implemented methods and methods of treatment of gastroesophageal cancer.

The invention discloses application of a medicago truncatula MYB transcription factor MtMYB1. According to the invention, a gene MtMYB1 for regulating and controlling development, flowering phase andgrowth period of floral organs and changing a plant type is colonized from medicago truncatula flower, and the sequence of the gene MtMYB1 is SEQ ID NO.1. The analysis of mRNA (messenger Ribonucleic Acid) expression of the gene shows that the MtMYB1 is expressed in flower tissues with strong advantages; phenotypic change of arabidopsis thaliana for further over-expression of the MtMYB1 shows thatthe MtMYB1 has an important regulation and control effect on the development, the flowering phase and the growth period of the floral organs and the plant type. The invention discloses the applicationof the gene in genetic engineering of morphology, the flowering phase and the growth period of the floral organs as well as plant type transformation.

The invention discloses a pear transcription factor PbrMYB169 and an application thereof. The pear transcription factor PbrMYB169 is separated from Dangshan crisp pears, and has MYB family member PbrMYB169 genes capable of adjusting and controlling development of sclereid of pear fruits, the nucleotide sequence of the pear transcription factor PbrMYB169 is as shown in SEQID No.1, and the coding amino acid sequence of the pear transcription factor PbrMYB169 is as shown in a sequence table SEQID No.2. Through an agrobacterium tumefaciens mediated heredity conversion method, PbrMYB169 transcription factors are converted into arabidopsis thaliana, and transgenic plants are obtained; biological function verification indicates that the PbrMYB169 gene cloned through the pear transcription factorPbrMYB169 has the function of promoting synthesis of arabidopsis thaliana inflorescence stem lignin, besides, the PbrMYB169 transcription factor has the advantage of being capable of adjusting and controlling a plurality of genes, and an efficient way is provided for molecular breeding. New genetic resources are provided for reduction of molecular breeding of synthesis of organism lignin, new heredity resources are provided for implementing green agriculture, and reduction of the agriculture cost and realization of an environmental-friendly purpose can be facilitated through development and utilization of the heredity resources.

A method of enhancing production of a phenylpropanoid compound in a plant or plant cell is disclosed. The method comprising: (a) expressing in the plant or plant cell a heterologous polynucleotide which produces a myb gene of the phenylpropanoid pathway; and (b) contacting the plant or plant cell with at least one substrate of the phenylpropanoid pathway, the substrate being upstream to the production of the phenylpropanoid compound, thereby enhancing the production of a phenylpropanoid compound in the plant or plant cell.

The invention relates to an artemisia apiacea MYB transcription factor AaMYB15 and application thereof in the technical field of plant biology. The nucleotide sequence of the transcription factor AaMYB15 is shown as SEQ ID NO: 1, and the amino acid sequence of the transcription factor AaMYB15 is shown as SEQ ID NO: 2. The transcription factor AaMYB15 disclosed by the invention can be used for inhibiting the activity of key enzyme genes ADS, CYP71AV1, DBR2 and ALDH1 promoters in an artemisinin biosynthesis pathway and regulating and controlling the expression of corresponding genes in a negative direction, so that the biosynthesis of artemisinin is inhibited; and the artemisinin content of the transgene can be remarkably reduced, the artemisinin content of the transgene artemisia apiacea can be remarkably increased, and no harm is caused to plant growth and development. The AaMYB15 transcription factor can be applied to increase of artemisinin yield through an antisense interference expression method, and is of great significance to genetic engineering breeding of artemisia apiacea and large-scale production of artemisinin.